EP2481595A2 - Auf einer Flüssigkeitsausgabevorrichtung montierter Flüssigkeitsaufbewahrungsbehälter - Google Patents

Auf einer Flüssigkeitsausgabevorrichtung montierter Flüssigkeitsaufbewahrungsbehälter Download PDF

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Publication number
EP2481595A2
EP2481595A2 EP12152858A EP12152858A EP2481595A2 EP 2481595 A2 EP2481595 A2 EP 2481595A2 EP 12152858 A EP12152858 A EP 12152858A EP 12152858 A EP12152858 A EP 12152858A EP 2481595 A2 EP2481595 A2 EP 2481595A2
Authority
EP
European Patent Office
Prior art keywords
stirring
liquid storage
ink
liquid
storage chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12152858A
Other languages
English (en)
French (fr)
Other versions
EP2481595A3 (de
EP2481595B1 (de
Inventor
Hiroyuki Kawate
Masaru Takahashi
Taku Ishizawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of EP2481595A2 publication Critical patent/EP2481595A2/de
Publication of EP2481595A3 publication Critical patent/EP2481595A3/de
Application granted granted Critical
Publication of EP2481595B1 publication Critical patent/EP2481595B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17513—Inner structure

Definitions

  • the present invention relates to a liquid storage container which is applied to a liquid ejecting apparatus ejecting a liquid such as ink and stores the liquid therein.
  • a printing apparatus which prints an image by ejecting ink onto a printing medium is widely used.
  • the image is printed by ejecting the ink from an ejecting head while reciprocating a carriage on which the ejecting head is provided on the printing medium.
  • the ejected ink is stored in an exclusive storage container referred to as an ink cartridge and mounted on the carriage.
  • a stirring mechanism of ink is provided in an ink storage chamber of the ink cartridge.
  • the stirring mechanism includes a plate-shaped stirring member which is provided in the ink storage chamber, a supporting member which supports the stirring member in the ink storage chamber, and the like.
  • a notch is provided at one end of the stirring member, and the stirring member is swingably supported by engaging the notch to the supporting member. If the ink cartridge including the ink stirring mechanism is mounted on the carriage, the stirring member is swung by reciprocation of the carriage, and the ink can be stirred by the movement of the stirring member ( JP-A-2007-69351 ).
  • An advantage of some aspects of the invention is to provide a technology capable of controlling noise generated due to an operation of a stirring member which is provided in an ink cartridge.
  • a liquid storage container which is mounted on a carriage of a liquid ejecting apparatus ejecting a liquid while reciprocating the carriage on which an ejecting head is provided and supplies the liquid to the ejecting head
  • a liquid storage chamber that stores the liquid therein
  • a stirring member that is provided in the liquid storage chamber
  • a support structure that supports the stirring member in a state where the stirring member can swing
  • the stirring member is a member which is provided in the liquid storage chamber in a state capable of being swung by the reciprocation of the carriage, and in which a stirring surface, which stirs the liquid in the liquid storage chamber by the swinging at the liquid storage chamber, is formed on at least a portion of the stirring member, and a first buffer member is provided between the supporting structure and the stirring member.
  • the stirring member swings in the liquid storage chamber by the reciprocation of the carriage if the liquid storage container is mounted on the carriage.
  • the first buffer member is provided between the supporting structure which supports the stirring member in the state where the stirring member can swing and the stirring member.
  • the liquid in the liquid storage chamber is stirred by the stirring surface if the stirring member swings, a concentration of the liquid in the liquid storage chamber can be uniformly held.
  • collision noise which is generated between the support structure and the stirring member by a vibration of the stirring member with respect to the support structure generated due to the fact that the stirring member collides with the wall surface of the liquid storage chamber, can be decreased. Thereby, the noise according to the operation of the stirring member provided in the liquid storage container is suppressed.
  • the first buffer member may be provided on an inner edge portion of the hole of the stirring member.
  • the first buffer member may be provided at the protrusion. Therefore, the noise according to the operation of the stirring member which is provided in the liquid storage container is suppressed.
  • the first buffer member may be provided at the inner edge portion of the hole of the stirring member. Therefore, the noise according to the operation of the stirring member which is provided in the liquid storage container is suppressed.
  • a liquid storage container which is mounted on a carriage of a liquid ejecting apparatus ejecting a liquid while reciprocating the carriage on which an ejecting head is provided and supplies the liquid to the ejecting head
  • a liquid storage chamber that stores the liquid therein
  • a stirring member that is provided in the liquid storage chamber
  • a support structure that supports the stirring member in a state where the stirring member can swing
  • the stirring member is a member which is provided in the liquid storage chamber in a state capable of being swung by the reciprocation of the carriage, and in which a stirring surface, which stirs the liquid in the liquid storage chamber by the swing at the liquid storage chamber, is formed on at least a portion of the stirring member, and the support structure is formed of rubber.
  • the noise according to the operation of the stirring member which is provided in the liquid storage container is suppressed, it is not necessary to provide the buffer member as the separated member, and therefore, the number of parts can be reduced.
  • Fig. 1 is a perspective view exemplifying a state where an ink cartridge is mounted on a carriage of an ink jet printer.
  • Figs. 2A and 2B are perspective views showing an appearance configuration of the ink cartridge.
  • Fig. 4 is a plan view showing the inner structure of the ink cartridge by peeling a display label which is stuck to a front side of the ink cartridge.
  • Fig. 5 is an explanatory view showing a stirring mechanism of ink which is provided in an ink chamber.
  • Figs. 6A to 6C are explanatory views showing a reason why noise during stirring of the ink is effectively suppressed by providing a buffer member to a hole of a stirring plate.
  • Figs. 7A and 7B are explanatory views showing an inner structure of an ink chamber of a first modification.
  • Fig. 10 is an explanatory view showing an inner structure of an ink chamber of a fourth modification.
  • Fig. 1 is an explanatory view exemplifying a state where an ink cartridge 100 is mounted on a carriage 10 of an ink jet printer 1.
  • the carriage 10 which reciprocates on a printing medium 2 is provided on the ink jet printer, and the ink cartridge 100 is mounted on the carriage 10.
  • An ejecting head 20 which ejects the ink is provided in a lower surface side (side facing the printing medium 2) of the carriage 10 for each ink cartridge 100, and the ink stored in the ink cartridge 100 is supplied to the ejecting head 20 and ejected from the ejecting head 20 toward the printing medium 2.
  • the ink jet printer 1 prints an image by using cyan ink (C ink), magenta ink (M ink), yellow ink (Y ink), and black ink (K ink).
  • C ink cyan ink
  • M ink magenta ink
  • Y ink yellow ink
  • K ink black ink
  • four ink cartridges 100 of the ink cartridge 100 which stores the C ink, the ink cartridge 100 which stores the M ink, the ink cartridge 100 which stores the Y ink, and the ink cartridge 100 which stores the K ink are mounted on the carriage 10.
  • Figs. 2A and 2B are perspective views showing an appearance configuration of the ink cartridge 100 which mounted on the carriage 10.
  • the ink cartridge 100 is an approximately rectangular shape, and a cartridge main body 102 is formed of a hard resin material.
  • a display label 120 is stuck so as to be bent from the front side surface to the upper surface.
  • Fig. 3 is a plan view showing the inner structure of the ink cartridge 100 by peeling the sealing film 130 which is stuck to the rear side surface of the ink cartridge 100.
  • a largely opened concave portion 105 appears.
  • the concave portion 105 is largely divided into four regions of regions 105a to 105d by a plurality of ribs 102r which is vertically and horizontally provided.
  • the ink chamber which stores the ink is formed between the concave portion 105 and the sealing film 130 by sticking the sealing film 130 onto the rear side of the ink cartridge 100 and sealing the concave portion 105.
  • FIG. 3 illustrates four regions (accordingly, configuration of ink chamber) configuring the concave portion 105.
  • the region 105a which becomes a first ink chamber is provided at the right side of Fig. 3
  • the region 105b which becomes a second ink chamber is provided at the upper left of Fig. 3 .
  • the region 105c shown by a finely oblique line is provided at the lower left in Fig. 3 with respect to the region 105b which becomes the second ink chamber.
  • the region 105c includes a sensor (not shown) and becomes a sensor chamber.
  • the ink when the ink is ejected from the ejecting head 20, after the ink flows from the communicating hole 105h into the pressure regulation chamber 107 via the second ink chamber, the sensor chamber, and the buffer chamber from the first ink chamber, the ink is supplied from the ink supply port 104 to the ejecting head 20.
  • a stirring plate 109 made of stainless-steel for stirring the ink is provided at the inner portions of the region 105a which becomes the first ink chamber and the region 105b which becomes the second ink chamber respectively.
  • An ink stirring mechanism including the stirring plate 109 will be described in detail hereinafter.
  • a region 108d which becomes an air chamber is provided at the lower left in Fig. 3 with respect to the region 105a which becomes the first ink chamber.
  • a communicating hole 108h is provided at the region 108d, and as described hereinafter, the communicating hole is connected to a hole open to the atmosphere via an air passage which is provided at the front side of the ink cartridge 100.
  • the region 108d which becomes an air chamber is connected to the region 105a, which becomes the above-described first ink chamber, by a connecting passage 106a.
  • the air chamber (region 108d in Fig. 3 ) traps the ink in the inner portion and prevents the ink from being leaked to the outside.
  • Fig. 5 is an explanatory view showing a stirring mechanism of ink which is provided in the ink cartridge 100 of the embodiment.
  • Fig. 5 shows a state when viewing a cross-section, which is taken along a line V-V with respect to the region 105b which becomes the second ink chamber shown in Fig. 3 , in the arrow of the line.
  • the ink stirring mechanism is also provided at the region 105a which becomes the first ink chamber (refer to Fig. 3 ).
  • the configurations of the stirring mechanisms are the same as each other, and the ink stirring mechanism in the second ink chamber will be explained as the example below.
  • the second ink chamber is simply referred to as an ink chamber.
  • a hole is provided at one end side of a stirring plate 109 which is provided in the ink chamber 110, and a rubber buffer member 109c is mounted on the inner edge portion of the hole.
  • the stirring plate 109 is supported into the ink chamber 110 in a state of having a gutter by engaging the hole of the stirring plate 109 on which the buffer member 109c is mounted to a protrusion 112 which is provided at the inner wall of the ink chamber 110.
  • the ink cartridge 100 including the ink stirring mechanism of the embodiment When the ink cartridge 100 including the ink stirring mechanism of the embodiment is mounted on the carriage 10, the ink cartridge 100 is reciprocated in a side surface direction (direction indicated by an arrow in Fig. 5 ) according to the reciprocation of the carriage 10. At this time, the stirring plate 109 in the ink cartridge 100 is swung with the movement of the ink cartridge 100. As described above, since the stirring plate 109 is formed of a material (stainless-steel in the embodiment) having a sufficiently greater specific gravity than the ink, the stirring plate 109 is swung in the left and right direction in the drawing while pushing the ink in the ink chamber 110 with a position which engages the hole of the stirring plate 109 and the protrusion 112 as the supporting point.
  • the stirring plate can stir so as to mix in the components of the ink which have settled below (that is, in the gravity direction in the state where the ink cartridge 100 is mounted on the carriage 10) in the drawing in the ink chamber 110, it is possible to uniformly maintain a concentration of the ink in the ink chamber 110.
  • Figs. 6A to 6C are explanatory views showing a reason why noise during stirring of the ink is effectively suppressed by providing a buffer member 109c to a hole which engages the stirring plate 109 to a protrusion 112.
  • Figs. 6A to 6C show the movement of the stirring plate 109 which generates noise during stirring the ink.
  • Fig. 6C shows the state where the stirring plate 109 vibrates with respect to the protrusion 112 which is the support structure due to the fact that the tip of the stirring plate 109 collides with the inner wall of the ink chamber 110.
  • the major cause of the noise generated during the stirring of the ink is the collision noise generated when the hole of the stirring plate 109 and the protrusion 112 collide with each other at the time of the stirring due to the fact that the stirring plate 109 vibrates when the stirring plate 109 collides the ink chamber 110. Therefore, since the impact at the time of the collision of the stirring plate 109 and the protrusion 112 can be suppressed by providing the buffer member 109c in the inner edge portion of the hole of the stirring plate 109, it is possible to decrease the major noise (collision noise of stirring plate 109 and protrusion portion 112). As a result, it is possible to effectively suppress the noise generated during the stirring of the ink.
  • the buffer member 109c is provided at the inner edge portion of the hole which engages the stirring plate 109 to the protrusion 112 of the ink chamber 110 is explained.
  • the buffer member 109c may be provided at the protrusion 112 side instead of providing the buffer member 109c in the stirring plate 109.
  • the protrusion 112 itself is formed of a rubber material, the same effects as those of the above-described case can be obtained, and the operation which separately mounts the buffer member 109c to the stirring plate 109 (or protrusion 112) may not be performed. Therefore, the manufacture of the ink cartridge 100 can be simply performed.
  • the buffer member 109c is provided only between the hole which engages the stirring plate 109 to the protrusion 112 and the protrusion 112 is explained.
  • the buffer member 109c is added to the following positions, it is possible to further suppress the noise which is generated during the stirring of the ink.
  • Figs. 8A and 8B are explanatory views showing the inner structure of the ink chamber 110 of the ink cartridge 100 of a second modification.
  • the buffer member 109c is provided at the position (lower end of stirring plate 109) at which the stirring plate 109 and the inner wall of the ink chamber 110 collide with each other when the stirring plate 109 swings through the inertial force.
  • the buffer member 109c is provided at the position at which the stirring plate 109 collides with the inner wall side of the ink chamber 110.
  • a small collision noise is generated even though the stirring plate 109 and the inner wall of the ink chamber 110 collide with each other (refer to Figs. 8A and 8B ). Accordingly, if the buffer member 109c is provided at the position at which the inner wall of the ink chamber 110 and the stirring plate 109 collide with each other, it is possible to further suppress the noise during the stirring of the ink.
  • the buffer members 109c are separately provided at the inner edge portion of the hole of the stirring plate 109 and the portion at which the inner wall of the ink chamber 110 and the stirring plate 109 collide with each other is explained.
  • the buffer members 109c may be integrally formed.
  • Fig. 9 is an explanatory view showing the inner structure of the ink chamber 110 of the ink cartridge 100 of a third modification.
  • the buffer member 109c which is provided at the inner edge portion of the hole of the stirring plate 109 is connected to the buffer member 109c, which is provided at the portion at which the inner wall of the ink chamber 110 and the stirring plate 109 collide with each other, by a rubber and the buffer members are integrally formed. If the buffer members 109c are formed in this way, since the entire buffer member 109c can be mounted on the stirring plate 109 in the mounting operation once when the buffer member 109c is mounted on the stirring plate 109, it is possible to simply manufacture the ink cartridge 100.
  • the stirring plate 109 may be accommodated in the ink chamber 110 in a state of being capable of swinging by the reciprocation of the carriage 10.
  • the stirring plate 109 may be only put in the ink chamber 110. Even though when the stirring plate is provided in this way, the stirring plate can stir in the ink chamber 110 due to the fact that the stirring plate 109 swings according to the reciprocation of the carriage 10.
  • Fig. 10 the stirring plate 109 may be only put in the ink chamber 110.

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  • Ink Jet (AREA)
EP12152858.2A 2011-01-31 2012-01-27 Auf einer Flüssigkeitsausgabevorrichtung montierter Flüssigkeitsaufbewahrungsbehälter Not-in-force EP2481595B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011017645A JP5838556B2 (ja) 2011-01-31 2011-01-31 液体噴射装置に装着される液体収容容器

Publications (3)

Publication Number Publication Date
EP2481595A2 true EP2481595A2 (de) 2012-08-01
EP2481595A3 EP2481595A3 (de) 2012-10-03
EP2481595B1 EP2481595B1 (de) 2014-12-10

Family

ID=45531242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12152858.2A Not-in-force EP2481595B1 (de) 2011-01-31 2012-01-27 Auf einer Flüssigkeitsausgabevorrichtung montierter Flüssigkeitsaufbewahrungsbehälter

Country Status (4)

Country Link
US (1) US8662738B2 (de)
EP (1) EP2481595B1 (de)
JP (1) JP5838556B2 (de)
CN (2) CN102673160B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3556459A1 (de) * 2018-04-17 2019-10-23 Seiko Epson Corporation Flüssigkeitsbehälter und flüssigkeitsverbrauchsvorrichtung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6311251B2 (ja) * 2013-09-20 2018-04-18 セイコーエプソン株式会社 液体収容容器
WO2019117845A1 (en) * 2017-12-11 2019-06-20 Hewlett-Packard Development Company, L.P. Fluid reservoirs
JP7467862B2 (ja) * 2019-09-30 2024-04-16 セイコーエプソン株式会社 インクジェット記録装置、インクジェット記録方法、及び水性インク組成物
JP2022125536A (ja) * 2021-02-17 2022-08-29 セイコーエプソン株式会社 印刷装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007069351A (ja) 2005-09-02 2007-03-22 Canon Inc インクタンクおよび記録装置

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US1622298A (en) * 1926-06-28 1927-03-29 Wahl Clipper Corp Vibrator mechanism
JP4356281B2 (ja) * 2002-03-19 2009-11-04 セイコーエプソン株式会社 インクジェット式記録装置
JP2005066520A (ja) * 2003-08-26 2005-03-17 Seiko Epson Corp 液体収容体、液体タンク、液体攪拌装置及び液体噴射装置
WO2005123397A1 (ja) * 2004-06-16 2005-12-29 Seiko Epson Corporation 液体収容体
FR2884699B1 (fr) * 2005-04-25 2007-08-10 Oreal Dispositif pour le conditionnement et la distribution d'un produit
US7621627B2 (en) * 2005-09-02 2009-11-24 Canon Kabushiki Kaisha Liquid container
JP4235659B2 (ja) * 2005-09-02 2009-03-11 キヤノン株式会社 液体収納容器
JP4886586B2 (ja) * 2006-05-09 2012-02-29 キヤノン株式会社 液体収納容器、ヘッドカートリッジ、インクジェット記録装置、および液体収納容器の攪拌方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007069351A (ja) 2005-09-02 2007-03-22 Canon Inc インクタンクおよび記録装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3556459A1 (de) * 2018-04-17 2019-10-23 Seiko Epson Corporation Flüssigkeitsbehälter und flüssigkeitsverbrauchsvorrichtung
US10845730B2 (en) 2018-04-17 2020-11-24 Seiko Epson Corporation Liquid container and liquid consumption device

Also Published As

Publication number Publication date
JP2012158006A (ja) 2012-08-23
CN102673160B (zh) 2014-11-19
EP2481595A3 (de) 2012-10-03
US8662738B2 (en) 2014-03-04
JP5838556B2 (ja) 2016-01-06
EP2481595B1 (de) 2014-12-10
US20120195158A1 (en) 2012-08-02
CN202507676U (zh) 2012-10-31
CN102673160A (zh) 2012-09-19

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